Perhaps you should try some spelling variations:
tong cong » trong cong, cong cong, dung cong
thiet yeu » thiet ke, theo yeu
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
anh dang » anh dong, anh bang, anh danh
anh dung » anh dong, anh huong, sach dung
cua tong » cua cong, cua dong, cua nong
than cau » toan cau, phan cau, than cap
cho chu » cho thue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thiet yeu) or (cho chu)) xanh - ((anh dang) OR (anh dung)) cua tong cong sang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thiet yeu) OR (cho chu)) xanh - ((anh dang) OR (anh dung)) cua tong cong sang than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thiet yeu) or (cho chu)) xanh - ((anh dang) OR (anh dung)) cua tong cong sang than cau".
• Adding a wildcard symbol may retrieve word variants: ((thiet yeu) or (cho chu)) xanh - ((anh dang) OR (anh dung)) cua tong cong sang than cau*.